/* SCTP kernel Implementation * Copyright (c) 2003 Hewlett-Packard Development Company, L.P * (C) Copyright IBM Corp. 2004 * * This file has test cases to test the Non-Blocking mode of connect(), * accept() and recvmsg() calls. * * TEST1: Non blocking accept return EAGAIN if connect is not called * TEST2: Non blocking connect should return EINPROGRESS * TEST3: accept() passes when connect called in Non-blocking mode * TEST4: Non blocking recvmsg should return EAGAIN * TEST5: recvmsg() should succeed if data present to receive in non blocking * mode * * The SCTP implementation is free software; * you can redistribute it and/or modify it under the terms of * the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * The SCTP implementation is distributed in the hope that it * will be useful, but WITHOUT ANY WARRANTY; without even the implied * ************************ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GNU CC; see the file COPYING. If not, write to * the Free Software Foundation, 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * * Please send any bug reports or fixes you make to the * email address(es): * lksctp developers * * Or submit a bug report through the following website: * http://www.sf.net/projects/lksctp * * Any bugs reported given to us we will try to fix... any fixes shared will * be incorporated into the next SCTP release * */ #include #include #include #include #include #include #include #include /* for sockaddr_in */ #include #include #include #include #include #include char *TCID = __FILE__; int TST_TOTAL = 5; int TST_CNT = 0; int main(int argc, char *argv[]) { int error,msg_count; socklen_t len; int sk,pf_class,lstn_sk,acpt_sk,flag,cflag,sflag; struct msghdr outmessage; struct msghdr inmessage; char *message = "hello, world!\n"; struct iovec iov_rcv; struct sctp_sndrcvinfo *sinfo; char outcmsg[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))]; struct cmsghdr *cmsg; struct iovec out_iov; char * buffer_rcv; char incmsg[CMSG_SPACE(sizeof(sctp_cmsg_data_t))]; struct sockaddr_in conn_addr,lstn_addr,svr_addr; /* Rather than fflush() throughout the code, set stdout to * be unbufferd */ setvbuf(stdout, NULL, _IONBF, 0); setvbuf(stderr, NULL, _IONBF, 0); pf_class = PF_INET; sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP); lstn_sk = test_socket(pf_class, SOCK_STREAM, IPPROTO_SCTP); conn_addr.sin_family = AF_INET; conn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK; conn_addr.sin_port = htons(SCTP_TESTPORT_1); lstn_addr.sin_family = AF_INET; lstn_addr.sin_addr.s_addr = SCTP_IP_LOOPBACK; lstn_addr.sin_port = htons(SCTP_TESTPORT_1); /*Binding the listen socket*/ test_bind(lstn_sk, (struct sockaddr *) &lstn_addr, sizeof(lstn_addr)); /*Listening the socket*/ test_listen(lstn_sk, 10); len = sizeof(struct sockaddr_in); flag = MSG_NOSIGNAL; /*Setting server socket non-blocking*/ sflag = fcntl(lstn_sk, F_GETFL, 0); if (sflag < 0) tst_brkm(TBROK, tst_exit, "fcnt F_GETFL failed " "sflag:%d, errno:%d", sflag, errno); error = fcntl(lstn_sk, F_SETFL, sflag | O_NONBLOCK); if (error < 0) tst_brkm(TBROK, tst_exit, "fcnt F_SETFL failed " "error:%d, errno:%d", error, errno); /* TEST1: accept should return EAGAIN instead blocking. */ error = accept(lstn_sk, (struct sockaddr *)&svr_addr, &len); if (error != -1 || errno != EAGAIN) tst_brkm(TBROK, tst_exit, "non-blocking accept " "error:%d, errno:%d", error, errno); tst_resm(TPASS, "non-blocking accept() - EAGAIN"); /* TEST2: Non Block connect should return EINPROGRESS */ /*Set client socket as non-blocking*/ cflag = fcntl(sk, F_GETFL, 0); if (cflag < 0) tst_brkm(TBROK, tst_exit, "fcnt F_GETFL failed " "cflag:%d, errno:%d", cflag, errno); error = fcntl(sk, F_SETFL, sflag | O_NONBLOCK); if (error < 0) tst_brkm(TBROK, tst_exit, "fcnt F_SETFL failed " "error:%d, errno:%d", error, errno); error = connect(sk, (const struct sockaddr *) &conn_addr, len); if (error != -1 || errno != EINPROGRESS) tst_brkm(TBROK, tst_exit, "non-blocking connect " "error:%d, errno:%d", error, errno); tst_resm(TPASS, "non-blocking connect() - EINPROGRESS"); /* TEST3: Now that connect() called, accept will succeed */ acpt_sk = accept(lstn_sk, (struct sockaddr *)&svr_addr, &len); if (acpt_sk < 0) tst_brkm(TBROK, tst_exit, "accept after a non-blocking connect " "error:%d, errno:%d", error, errno); tst_resm(TPASS, "accept() after a non-blocking connect - SUCCESS"); memset(&outmessage, 0, sizeof(outmessage)); outmessage.msg_name = &svr_addr; outmessage.msg_namelen = sizeof(svr_addr); outmessage.msg_iov = &out_iov; outmessage.msg_iovlen = 1; outmessage.msg_control = outcmsg; outmessage.msg_controllen = sizeof(outcmsg); outmessage.msg_flags = 0; cmsg = CMSG_FIRSTHDR(&outmessage); cmsg->cmsg_level = IPPROTO_SCTP; cmsg->cmsg_type = SCTP_SNDRCV; cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo)); outmessage.msg_controllen = cmsg->cmsg_len; sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg); memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo)); outmessage.msg_iov->iov_base = message; outmessage.msg_iov->iov_len = strlen(message) + 1; memset(&inmessage, 0, sizeof(inmessage)); buffer_rcv = malloc(REALLY_BIG); iov_rcv.iov_base = buffer_rcv; iov_rcv.iov_len = REALLY_BIG; inmessage.msg_iov = &iov_rcv; inmessage.msg_iovlen = 1; inmessage.msg_control = incmsg; inmessage.msg_controllen = sizeof(incmsg); msg_count = strlen(message) + 1; /* TEST4: recvmsg() should return EAGAIN instead blocking */ error = recvmsg(sk, &inmessage, MSG_WAITALL); if ( error != -1 || errno != EAGAIN) tst_brkm(TBROK, tst_exit, "non-blocking recvmsg " "error:%d, errno:%d", error, errno); tst_resm(TPASS, "non-blocking recvmsg() - EAGAIN"); test_sendmsg(acpt_sk, &outmessage, flag, msg_count); /* TEST5: recvmsg() should succeed now as data is available. */ error = test_recvmsg(sk, &inmessage, flag); test_check_msg_data(&inmessage, error, msg_count, MSG_EOR, 0, 0); tst_resm(TPASS, "non-blocking recvmsg() when data is available - " "SUCCESS"); close(lstn_sk); close(acpt_sk); return 0; }